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USGS Surface-Water Daily Statistics for the Nation

The statistics generated from this site are based on approved daily-mean data and may not match those published by the USGS in official publications. The user is responsible for assessment and use of statistics from this site. For more details on why the statistics may not match, click here.

USGS 07195500 Illinois River near Watts, OK


Adair County, Oklahoma
Hydrologic Unit Code 11110103
Latitude  36°07'48", Longitude  94°34'19" NAD27
Drainage area 630  square miles
Contributing drainage area 630  square miles
Gage datum 894.01 feet above NAVD88
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00060, Discharge, cubic feet per second,
Day of
month		 Mean of daily mean values for each day for water year of record in, ft3/s   (Calculation Period 1955-10-01 -> 2025-09-30)

Calculation period restricted by USGS staff due to special conditions at/near site
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
1 800 744 734 1,030 1,490 723 587 360 205 733 618 735
2 646 756 739 878 1,260 783 522 328 255 474 579 597
3 559 584 879 1,240 1,750 792 595 268 265 369 594 732
4 774 584 860 1,220 1,580 758 483 307 302 335 868 769
5 950 571 831 1,180 2,090 776 415 284 249 329 753 580
6 704 583 741 1,070 1,490 774 379 274 221 561 524 534
7 584 649 713 807 1,620 1,220 370 252 204 516 696 498
8 573 671 789 1,070 1,300 993 418 316 195 342 651 445
9 532 723 833 877 1,200 1,000 430 322 227 602 557 500
10 571 744 892 972 1,220 819 491 282 231 467 468 569
11 718 608 1,000 1,010 1,210 793 384 276 205 489 448 639
12 576 605 966 1,010 1,010 650 512 250 195 361 425 519
13 718 652 909 974 902 625 666 263 196 435 404 553
14 808 682 1,010 1,070 922 596 494 455 411 424 521 832
15 624 783 1,090 943 959 637 385 440 401 349 453 889
16 550 793 875 828 895 800 400 282 306 309 485 809
17 496 781 878 816 938 639 387 306 312 317 587 792
18 585 655 1,040 807 982 667 359 324 291 278 723 792
19 652 564 1,670 935 877 760 294 275 360 277 791 624
20 618 567 1,460 1,400 1,160 608 259 261 388 306 594 693
21 578 863 1,080 1,350 996 763 263 236 333 352 542 876
22 633 871 945 1,350 917 762 306 230 346 285 587 723
23 552 983 904 1,400 1,060 590 398 230 376 289 531 540
24 495 1,250 1,280 1,760 1,340 688 306 239 399 350 738 535
25 511 1,020 1,290 1,960 1,330 555 639 200 343 417 1,100 660
26 530 758 1,050 1,760 1,230 542 460 202 419 395 678 722
27 500 723 1,020 1,170 1,000 491 329 202 461 574 684 1,400
28 503 740 1,220 1,280 957 512 336 221 283 417 702 1,530
29 608 338 1,180 1,510 789 624 307 198 376 418 604 732
30 875   1,260 1,990 787 482 306 201 629 499 767 657
31 818   1,100   730   352 194   492   655